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Petrographic methods, the authorized English translation of Part I, Anleitung zum Gebrauch des Polarisationsmikroskops (3d. rev. ed.) and Part II, Die gesteinbildenden Mineralien (2d. rev. ed.) (1912)

Weinschenk, Ernst, 1865-1921, Clark, Robert Watson, b. 1884 · New York [etc] McGraw-Hill book company · leaf 134

An illustration from Petrographic methods, the authorized English translation of Part I, Anleitung zum Gebrauch des Polarisationsmikroskops (3d. rev. ed.) and Part II, Die gesteinbildenden Mineralien (2d. rev. ed.), 1912, leaf 134
FIG. 137.Inclined Dispersion. FIG. 138.—Optic Plane in a Monoclinic Crystalwith Crossed (Horizontal) Dispersion. The interference figure is symmetrical with respect to the planeof the optic axes but not to the plane perpendicular to it, becausethe bands of color are different on each arm of the…

Mineralogy · Petrology · Microscopy

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More pictures from Petrographic methods, the authorized English translation of Part I, Anleitung zum Gebrauch des Polarisationsmikroskops (3d. rev. ed.) and Part II, Die gesteinbildenden Mineralien (2d. rev. ed.)

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